Re: [ceph-users] remove big rbd image is very slow

2018-03-27 Thread shadow_lin
I did have done that before, but in most time I can't just delete the pool. Is there any other way to speed up the rbd image deletion? 2018-03-27 shadowlin 发件人:Ilya Dryomov 发送时间:2018-03-26 20:09 主题:Re: [ceph-users] remove big rbd image is very slow 收件人:"shadow_lin" 抄送:"

Re: [ceph-users] remove big rbd image is very slow

2018-03-26 Thread Ilya Dryomov
On Sat, Mar 17, 2018 at 5:11 PM, shadow_lin wrote: > Hi list, > My ceph version is jewel 10.2.10. > I tired to use rbd rm to remove a 50TB image(without object map because krbd > does't support it).It takes about 30mins to just complete about 3%. Is this > expected? Is there a way to make it faste

Re: [ceph-users] remove big rbd image is very slow

2018-03-23 Thread David Turner
Just to note the "magic" of object-map... If you had a 50TB RBD with object-map and 100% of the RBD is in use, the rbd rm will take the same amount of time to delete the RBD as if you don't have object-map enabled on a brand new 50TB RBD that has no data in it. Removing that many objects just take

Re: [ceph-users] remove big rbd image is very slow

2018-03-17 Thread Jack
Yes, this is what object-map does, it tracks used objects For your 50TB new image: - Without object-map, rbd rm must interate over every object, find out that the object does not exists, look after the next object etc - With object-map, rbd rm get the used objects list, find it empty, and job is d

[ceph-users] remove big rbd image is very slow

2018-03-17 Thread shadow_lin
Hi list, My ceph version is jewel 10.2.10. I tired to use rbd rm to remove a 50TB image(without object map because krbd does't support it).It takes about 30mins to just complete about 3%. Is this expected? Is there a way to make it faster? I know there are scripts to delete rados objects of the r